//Number
//Timothy Grant
//CS1410
//Calculator 1410
//Final Version

package numbers;

public interface Number
{
    boolean isValidOperator(String s);
    String opand2Str(String e, int i);
    String op2Str(String e, int i);    
    Number str2Number(String s);
    Number doOp(Number n1, Number n2, String op);
    boolean isLower( String op1, String op2);
}
